Cacophony Project's iOS app connects to thermal and IR cameras in remote locations, allowing users to gather events and recordings to monitor and protect wildlife. The app is used to remotely configure and manage the devices, including location, playing audio, and connecting to networks. Videos captured by the devices are uploaded to a website where users can view and tag the footage. The app is open-source and designed to be user-friendly, providing real-time data and alerts to ensure effective conservation efforts.